Question

Please help me please.

Henry tossed a coin several times and recorded the number of heads and tails in the following table:


Coin Experiment
Side of Coin Number of
Tosses
---------------------------------------------
Heads 12
Tails 18


What is the experimental probability of getting heads?
A. 0.4
B. 0.7
C. 1.2
D. 1.8

Answer 1

Remark
The trick here is not to take the probability as 12/18 = 2/3

The probability is 12/30 because he has thrown the coin a total of 30 times and it has landed on heads 12 of those 30 times.

Divide the top and bottom by 6 which is the highest common factor.
12/30 = 2/5